11. However, unintended residual stress in a designed structure may cause it to fail prematurely. 12. The failure was exacerbated by a high level of residual stress in the eyebar. 13. The residual stress profile is also dependent on coverage density. 14. Steel weldments are occasionally annealed in a low temperature oven to relieve residual stresses . 15. That allowed especially the evaluation of residual stresses which are not constant along the depth. 16. Several methods have been developed for the evaluation of residual stresses from the relieved deformations. 17. The hole drilling method is one of the most used methods for residual stress measurement. 18. These stresses are called " residual stresses ", because they reside within the metal workpiece. 19. In extreme cases, residual stress can cause structural failure. 20. "' The hole drilling method "'is a method for measuring residual stresses in a material.
